There are three states in the Northeast that currently rank as some of the most expensive states to live in, including New York. News that it is costly to live in New York state should not come as a shock to anyone. Nearby Massachusetts was the third most expensive, and that mostly had to do with housing cost being nearly over 100% higher than average. Ranking as the ninth most expensive state was Vermont, who also has a fairly low poverty rate, but a high cost of living average compared to median household income. Read More: 9 Worst Small New York State TownsHow was this study determined?